While inspired by the Spannerhands spool system, I wanted something a little different so I designed my own enclosed spool holder system (https://www.thingiverse.com/thing:2872673). Then I designed this!
Just like my previous design, I designed this to be parametric, but this one allows the ability to just drop a spool (no spool core needed). This includes 4 separate mounting positions for the bearings, but you can probably get away with two on each side.
I have included two different ways to print the base which holds the bearings (selectable in the .f3d file as well).
The first is a single piece “No Assembly” base which will require supports for the bearing mounts when printing, and depending on your tolerances, may be difficult to place the bearings on the mounts.
The second is a multi-piece "Some Assembly Required" (SAR) base and will print without any supports needed. This will allow you to print the Bearing Mounts separately, place them in the bearings outside of the spool holder, then attach them with screws through the outer shell.
And, there is a spot to stick your desiccant packets.
To customize the size or options of the spool holder, open the .f3d file in Fusion 360, Click on "Modify" and select "Change Parameters". You can easily change the following settings:
- MaximumSpoolDiameter (185 mm minimum, or the hinges mess up)
- AssemblyRequired (Toggles between the 1 piece base and the base with detachable mounts)
Then just re export the .stl files and print :)
- Base and Lid - sized for 200 mm x 70 mm spool (customizable in .f3d file)
- TPU Seal - (size will auto update if customized)
- Latch - print-in-place hinged latch or some-assembly-required latch
- Bearing Mounts - separate printed bearing mounts for the "Some Assembly Required" base; attachment hole based on StandardOrMetric setting.
- PTFE Coupler - m6 or m10 threads (have also included a m10 swivel coupler)
- m10 or m6 PTFE Coupling (your Preference/Availability)
- 4 to 8x - 608 bearings
- 4x - m3x12 button head screws if using the Some-Assembly-Required Latch
Default standard/imperial config (cheaper for me) -
- 2x - 1/4-20 x 3/4in Machine Screw
- 2x - 1/4-20 Nut
- 10x - #4 x 3/8in Pan Head Sheet Metal Screws
- 8x - #4 x 3/8in Pan Head Sheet Metal Screws if printing SAR base
Alternate metric config (customizable in .f3d file) -
- 2x - m6x20 Machine Screw
- 2x - m6 Nut
- 10x - m3x8 Screw (or m3x12 + m3 Nut)
- 8x - m3x8 Screw if printing SAR base
5/9/2018 - Initial Upload
5/20/2018 - Fixed error in width calculation (accidentally left in extra padding from previous design; was 10mm too wide); redesigned bearing mounts; made a few other adjustments to various measurements to get a better fit.
5/21/2018 - Modified the PTFE Swivel Coupler to be easier to break free
Base - Dealer's choice; use your preferred layer resolution and nozzle size; depending on whether you have chosen to print the "No Assembly" or "Some Assembly Required" version of the base, you may need some minimal supports. For the "No Assembly" version, you will need supports for the horizontal bearing mounts attached to the side wall. In the SAR version, you shouldn't need any supports.
Lid, Bearing Mounts (only if printing SAR version), and fixed PTFE Couplers - Dealer's choice; use your preferred layer resolution and nozzle size; should not require any supports.
Swivel PTFE Coupler - .2 resolution; requires a fairly dialed in machine due to the tight tolerances for the print in place swivel portion; should not require any supports.
Seal - should be printed in flexible filament, otherwise what's the point? :)
Print in place Latch - this is printed on it's side and will need supports, I also suggest 3 walls to ensure the pins are mostly solid.
Some Assembly Required Latch - printed in same orientation as Print in Place Latch, needs supports but insure no supports are printed inside threaded holes on inside portion of latch. Break apart when finished for cleanup, then assemble with m3 screws.